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<?php |
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|
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namespace TierPricingTable\Addons\TieredPricingCart; |
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|
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/* |
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* Class TieredPricingCartService |
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* |
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* Service modifies product's price in the cart based on quantity and tiered pricing rules |
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* |
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* @package TierPricingTable\Addons\TieredPricingCart |
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*/ |
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use TierPricingTable\CalculationLogic; |
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use TierPricingTable\Core\ServiceContainerTrait; |
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use TierPricingTable\PriceManager; |
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use WC_Product; |
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use WC_Cart; |
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class TieredPricingCartService { |
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use ServiceContainerTrait; |
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protected $originalPrices = []; |
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|
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public function __construct() { |
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add_action( |
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'woocommerce_before_calculate_totals', |
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array($this, 'calculateTieredPricingInCart'), |
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99999, |
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3 |
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); |
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add_action( |
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'woocommerce_before_mini_cart_contents', |
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array($this, 'triggerMiniCartUpdate'), |
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9999, |
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3 |
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); |
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add_filter( |
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'woocommerce_cart_item_price', |
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array($this, 'calculateCartItemPrice'), |
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999, |
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2 |
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); |
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add_filter( |
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'woocommerce_cart_item_subtotal', |
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array($this, 'modifyCartItemSubtotal'), |
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999, |
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3 |
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); |
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} |
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|
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/** |
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* The "Total savings" row: what the tiered prices took off the cart, before the order total in the |
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* cart totals and in the checkout order review. |
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*/ |
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public function renderTotalSavings() { |
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if ( !CartOptionsSubsection::showTotalSavings() ) { |
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return; |
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} |
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$savings = $this->getTotalSavings(); |
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if ( $savings <= 0 ) { |
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return; |
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} |
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$label = CartOptionsSubsection::getTotalSavingsLabel(); |
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?> |
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<tr class="tpt-cart-total-savings"> |
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<th><?php |
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echo esc_html( $label ); |
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?></th> |
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<td data-title="<?php |
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echo esc_attr( $label ); |
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?>"><?php |
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echo wp_kses_post( wc_price( $savings ) ); |
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?></td> |
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</tr> |
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<?php |
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} |
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|
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/** |
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* The sum of every line's saving: the original price (regular or sale, per the cart option) against |
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* the tiered price, both as displayed (with or without tax) times the quantity. |
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*/ |
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public function getTotalSavings() : float { |
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$cart = wc()->cart; |
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if ( !$cart instanceof WC_Cart ) { |
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return 0; |
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} |
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$considerSalePriceAsDiscount = $this->getContainer()->getSettings()->get( 'consider_sale_price_as_discount_in_cart', 'no' ) === 'yes'; |
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$total = 0; |
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foreach ( $cart->get_cart() as $cartItemKey => $cartItem ) { |
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$newPrice = $this->getCartItemPrice( $cartItem, $cartItemKey, $cart ); |
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if ( false === $newPrice ) { |
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continue; |
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} |
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$product = wc_get_product( $cartItem['data']->get_id() ); |
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$originalPrice = ( $considerSalePriceAsDiscount ? $product->get_regular_price() : $product->get_price() ); |
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if ( '' === $originalPrice || null === $originalPrice ) { |
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continue; |
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} |
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$quantity = (int) $cartItem['quantity']; |
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if ( $product->is_taxable() ) { |
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$withTax = $cart->display_prices_including_tax(); |
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$original = ( $withTax ? wc_get_price_including_tax( $product, array( |
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'qty' => $quantity, |
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'price' => $originalPrice, |
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) ) : wc_get_price_excluding_tax( $product, array( |
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'qty' => $quantity, |
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'price' => $originalPrice, |
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) ) ); |
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$new = ( $withTax ? wc_get_price_including_tax( $product, array( |
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'qty' => $quantity, |
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'price' => $newPrice, |
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) ) : wc_get_price_excluding_tax( $product, array( |
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'qty' => $quantity, |
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'price' => $newPrice, |
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) ) ); |
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} else { |
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$original = (float) $originalPrice * $quantity; |
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$new = (float) $newPrice * $quantity; |
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} |
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$total += max( 0, (float) $original - (float) $new ); |
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} |
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return (float) apply_filters( 'tiered_pricing_table/cart/total_savings', round( $total, wc_get_price_decimals() ), $cart ); |
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} |
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|
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public function modifyCartItemSubtotal( $subtotal, $cartItem, $cartItemKey ) { |
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$newPrice = $this->getCartItemPrice( $cartItem, $cartItemKey ); |
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if ( false === $newPrice ) { |
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return $subtotal; |
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} |
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$recalculateCartItemSubtotal = apply_filters( |
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'tiered_pricing_table/cart/recalculate_cart_item_subtotal', |
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true, |
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$cartItem, |
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$cartItemKey, |
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$subtotal |
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); |
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if ( !$recalculateCartItemSubtotal ) { |
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return $subtotal; |
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} |
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$considerSalePriceAsDiscount = $this->getContainer()->getSettings()->get( 'consider_sale_price_as_discount_in_cart', 'no' ) === 'yes'; |
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$considerSalePriceAsDiscount = apply_filters( |
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'tiered_pricing_table/cart/subtotal/consider_sale_price_as_discount', |
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$considerSalePriceAsDiscount, |
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$cartItem, |
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$cartItemKey |
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); |
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// Reset product instance because prices is already modified in the "woocommerce_before_calculate_totals" hook. |
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// We will not be able to get the original price |
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$product = wc_get_product( $cartItem['data']->get_id() ); |
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if ( $product->is_taxable() ) { |
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if ( wc()->cart->display_prices_including_tax() ) { |
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$originalCartItemPrice = wc_get_price_including_tax( $product, array( |
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'qty' => $cartItem['quantity'], |
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'price' => ( $considerSalePriceAsDiscount ? $product->get_regular_price() : $product->get_price() ), |
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) ); |
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$newCartItemPrice = wc_get_price_including_tax( $product, array( |
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'qty' => $cartItem['quantity'], |
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'price' => $newPrice, |
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) ); |
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$originalProductSubtotal = wc_price( $originalCartItemPrice ); |
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$newProductSubtotal = wc_price( $newCartItemPrice ); |
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if ( !wc_prices_include_tax() && wc()->cart->get_subtotal_tax() > 0 ) { |
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$newProductSubtotal .= ' <small class="tax_label">' . WC()->countries->inc_tax_or_vat() . '</small>'; |
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} |
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} else { |
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$originalCartItemPrice = wc_get_price_excluding_tax( $product, array( |
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'qty' => $cartItem['quantity'], |
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'price' => ( $considerSalePriceAsDiscount ? $product->get_regular_price() : $product->get_price() ), |
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) ); |
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$newCartItemPrice = wc_get_price_excluding_tax( $product, array( |
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'qty' => $cartItem['quantity'], |
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'price' => $newPrice, |
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) ); |
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$originalProductSubtotal = wc_price( $originalCartItemPrice ); |
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$newProductSubtotal = wc_price( $newCartItemPrice ); |
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if ( wc_prices_include_tax() && wc()->cart->get_subtotal_tax() > 0 ) { |
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$newProductSubtotal .= ' <small class="tax_label">' . WC()->countries->ex_tax_or_vat() . '</small>'; |
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} |
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} |
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} else { |
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$_originalItemPrice = ( $considerSalePriceAsDiscount ? $product->get_regular_price() : $product->get_price() ); |
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$originalCartItemPrice = (float) $_originalItemPrice * (float) $cartItem['quantity']; |
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$newCartItemPrice = (float) $newPrice * (float) $cartItem['quantity']; |
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$originalProductSubtotal = wc_price( $originalCartItemPrice ); |
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$newProductSubtotal = wc_price( $newCartItemPrice ); |
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} |
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return $newProductSubtotal; |
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} |
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|
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public function getCartItemPrice( $cartItem, $cartItemKey, $cart = null ) { |
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$cart = ( $cart instanceof WC_Cart ? $cart : wc()->cart ); |
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if ( !$cart instanceof WC_Cart ) { |
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return false; |
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} |
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$calculateTieredPriceForItem = apply_filters( |
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'tiered_pricing_table/cart/need_price_recalculation', |
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true, |
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$cartItem, |
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$cart |
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); |
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if ( !$calculateTieredPriceForItem ) { |
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return false; |
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} |
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if ( empty( $cartItem['data'] ) || !$cartItem['data'] instanceof WC_Product ) { |
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return false; |
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} |
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$pricingRule = PriceManager::getPricingRule( $cartItem['data']->get_id() ); |
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$totalQuantity = $this->getTotalProductCount( $cartItem ); |
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$newPrice = $pricingRule->getTierPrice( $totalQuantity, false, 'cart' ); |
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return apply_filters( |
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'tiered_pricing_table/cart/product_cart_price', |
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$newPrice, |
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$cartItem, |
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$cartItemKey, |
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$totalQuantity |
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); |
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} |
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|
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/** |
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* Calculate price by quantity rules |
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* |
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* @param WC_Cart $cart |
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*/ |
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public function calculateTieredPricingInCart( WC_Cart $cart ) { |
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if ( !empty( $cart->get_cart_contents() ) ) { |
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foreach ( $cart->get_cart_contents() as $key => $cartItem ) { |
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$newPrice = $this->getCartItemPrice( $cartItem, $key, $cart ); |
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if ( false !== $newPrice ) { |
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if ( !isset( $this->originalPrices[$key] ) ) { |
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// Store the raw price prop ("edit" context) on purpose. The "view" context runs the |
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// "woocommerce_product_get_price" filter, which both RegularPricingService and currency |
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// switchers hook into. Storing an already filtered value and restoring it with |
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// set_price() would apply those filters a second time. |
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$this->originalPrices[$key] = $cartItem['data']->get_price( 'edit' ); |
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} |
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$cartItem['data']->set_price( $newPrice ); |
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$cartItem['data']->add_meta_data( 'tiered_pricing_cart_price_calculated', 'yes' ); |
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} else { |
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if ( isset( $this->originalPrices[$key] ) ) { |
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// Fully revert the modification: put the raw price prop back and drop the flag, so the |
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// "woocommerce_product_get_price" filters (role-based pricing, currency conversion) |
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// apply to the restored price exactly once, as they would have without this service. |
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$cartItem['data']->set_price( $this->originalPrices[$key] ); |
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$cartItem['data']->delete_meta_data( 'tiered_pricing_cart_price_calculated' ); |
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unset($this->originalPrices[$key]); |
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} |
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} |
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// Update tiered pricing data |
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$cart->cart_contents[$key]['tiered_pricing_data'] = array( |
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'total_item_quantity' => $this->getTotalProductCount( $cartItem ), |
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); |
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} |
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} |
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} |
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|
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/** |
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* Calculate price in mini cart |
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* |
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* @param string $price |
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* @param array $cartItem |
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* |
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* @return string |
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*/ |
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public function calculateCartItemPrice( $price, $cartItem ) { |
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$calculateTieredPriceForItem = apply_filters( 'tiered_pricing_table/cart/need_price_recalculation/item', true, $cartItem ); |
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if ( $cartItem['data'] instanceof WC_Product && $calculateTieredPriceForItem ) { |
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$product = wc_get_product( $cartItem['data']->get_id() ); |
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$pricingRule = PriceManager::getPricingRule( $cartItem['data']->get_id() ); |
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$newPrice = $pricingRule->getTierPrice( $this->getTotalProductCount( $cartItem ), true, 'cart' ); |
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$newPrice = apply_filters( 'tiered_pricing_table/cart/product_cart_price/item', $newPrice, $cartItem ); |
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if ( false !== $newPrice ) { |
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return wc_price( $newPrice ); |
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} |
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} |
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return $price; |
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} |
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|
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public function triggerMiniCartUpdate() { |
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$cart = wc()->cart; |
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$cart->calculate_totals(); |
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} |
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|
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/** |
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* Get total product count depends on user's settings |
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* |
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* @param ?array $cartItem |
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* |
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* @return int |
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*/ |
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public function getTotalProductCount( ?array $cartItem ) : int { |
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if ( CalculationLogic::considerProductVariationAsOneProduct() ) { |
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$count = 0; |
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foreach ( wc()->cart->cart_contents as $cart_content ) { |
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if ( $cart_content['product_id'] == $cartItem['product_id'] ) { |
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$count += $cart_content['quantity']; |
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} |
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} |
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} else { |
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$count = $cartItem['quantity']; |
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} |
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return (int) apply_filters( 'tiered_pricing_table/cart/total_product_count', $count, $cartItem ); |
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} |
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|
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} |
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|
